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DWV Drawing

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  • #16
    Re: DWV Drawing

    As well, I have always understood that FU's for ejectors is 2X the output in GPM... A 20GPM ejector is equal to 40DFU's... Additionally here we have to have all commercial ejectors duplexed - this is a commercial building, it should have duplexed ejectors...

    The following is per Phoenix code (as I understand it ...)

    On Rt side of basement, you should have a C/O above grade (3.5" in size with pipe to match) where main transitions from 3" to 4"...
    As well, exisitng C/O for mainline should be above floor or a floor clean out - no use below slab...
    On Lt side of bsmt, where is venting for those fixtures??? Where is C/O?

    Main floor - C/O should be brought above floor level... 3.5" C/O should be spec'd - it is the min size req'd...

    2nd Flr - C/O on end should be brought above floor - should be spec'd as 1/5"... Next C/O should be at Transition from 2 to 2.5" pipe - C/O req'd to be 2.5"... Next C/O at transition from 3 to 3.5" pipe - 3.5" C/O required... 3.5" C/O is good from then on....

    3rd flr - same as second...

    More comment maybe later - got to run...
    Taking a welding course at the hall...

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